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05-21-2013, 11:07 PM | #1 |
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which downpipes?
i want to liven up this thing a bit . sound wise and throttle response wise.
i was told specifically by my tuner to get downpipes with a genuine race cat (200 cell) and no spacer. anyone know who produces these? he told me NOT to go completely catless, as the f10 m5 needs both pre AND post-cat sensors for fuel/power management. this is not first hand knowledge so if any of you have knowledge to share on the subject id appreciate it. ![]() they will be accompanied by an exhaust as well. thinking Eisenmann race or Meistershaft, but not completely decided yet. Last edited by mainly; 05-21-2013 at 11:12 PM. |
05-21-2013, 11:52 PM | #2 | |
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05-22-2013, 12:33 AM | #3 |
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I have not seen a high-flow cat for the F10 other than the 400 cell or just go to the catless.
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05-22-2013, 12:58 AM | #4 |
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Thanks.eas has a 300 cell advertised on their site. But he told me to go with a 200 cell. I want there to be a significant difference and im afraid 300 cell won't be much better than stock.
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05-22-2013, 08:48 AM | #5 |
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catless youll get some exhaust fumes with windows open but on my 550i it made a huge power difference.. I will also be going catless on my M5 as soon as I get it next week.!!
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05-22-2013, 03:12 PM | #6 |
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Still seriously considering the Catless from IND. I think that the modded sound with a near stock exhaust will definitely be nice.
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05-22-2013, 08:53 PM | #7 |
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05-24-2013, 01:45 AM | #8 |
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Manhart Racing has downpipes too
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05-24-2013, 09:24 AM | #9 |
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Here's the question I really want to know ...
If you add DP's whether with or without cats will you need a tune to accompany the upgrade?
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05-24-2013, 10:30 AM | #10 |
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I will definitely want that option. Are you following that thread on the Manhart Tune Group Buy?
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05-24-2013, 10:49 AM | #11 |
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The link is officially up on the AMS site
![]() http://www.amsperformance.com/cart/a...downpipes.html Here is a set we just shipped with the high temp coating- ![]() ![]() ![]()
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05-24-2013, 11:23 AM | #12 |
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That is exactly what I am talking about. Nate, please pm the price for these bad boys.
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05-28-2013, 09:50 AM | #13 |
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Down pipes
You guys suck now I want a set. $2999 is a bit pricey with cats. Anyone who has these installed please chime in. Looking for some experience with the catalyst version.
Peace
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05-29-2013, 02:06 PM | #14 |
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We offer catless downpipes or catted downpipes that will fit with the OEM front pipes.
If you want to remain catted, I would highly recommend our catless downpipes + catted front pipes combo. The cats are moved downstream and reduced EGTs tremendously! Going full catless is fine, we've found a work around to include microcats and not trigger a CEL. However anyone considering a catless system should pair it with a tune. The ECU restricts this car a lot! Here is a link for more info: http://supersprintlabs.com/portfolio...aust-rd-notes/ Full catless setup: ![]() |
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05-29-2013, 02:25 PM | #15 |
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This is exactly right. However the choices for a proper tune with a catless downpipe setup is extremely limited right now.
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05-29-2013, 02:48 PM | #16 |
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I don't know much about these pipes but I do know kooks make some bad ass pipes.
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05-31-2013, 10:29 AM | #17 | |
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![]() i already have a tune. so ill have to check with my tuner to see if maybe it needs to be tweaked. for catted version II, are these 200 cell cats? btw, i thought dynos only showed wheel hp? Last edited by mainly; 05-31-2013 at 01:16 PM. |
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05-31-2013, 02:03 PM | #18 | |
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You need to look at gains across the powerboard instead of peak hp only, even more so on a torque monster such as the M5. High RPM arent its forté!
We're expecting much better results with a catless tune as the ECU simply cannot and wont adjust to the newly released exhaust flow. I would not expect a tune to allow this engine to breath much more at higher RPMs but would add tremendous amounts of mid-range performance. Max horsepower +7,7 hp @ 5770 rpm +16,5 hp @ 2900 rpm +21,9 hp @ 4300 rpm +21,2 hp @ 5400 rpm Max torque +34,1 Nm @ 2930 rpm +32,1 Nm @ 2100 rpm +38,7 Nm @ 2900 rpm +31,2 Nm @ 4000 rpm +30,2 Nm @ 5100 rpm The catless downpipes were designed to fit with the OEM front pipes as well as any downpipe-back exhaust. Thery are 80mm in diameter with a 70mm slip connection. The microcats are an extra $440 for the pair. We use 2x100 CPSI HJS metallic racing catalytic converters either on the downpipes or the front pipes. I hope this helps! Quote:
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05-31-2013, 02:18 PM | #19 | |
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so how much for just the downpipes with the race cats? and sure they wont trigger a cel? |
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